finally able to replicate #1558

work in progress and greatly improved error logging for config js failures

Author: ptrthomas

karate-core/src/main/java/com/intuit/karate/core/ScenarioEngine.java

@@ -1256,7 +1256,7 @@ private JsValue executeJsValue(Value function, Object... args) {
             return JS.execute(function, args);
         } catch (Exception e) {
             String jsSource = function.getSourceLocation().getCharacters().toString();
-            KarateException ke = JsEngine.fromJsEvalException(jsSource, e);
+            KarateException ke = JsEngine.fromJsEvalException(jsSource, e, null);
             setFailedReason(ke);
             throw ke;
         }
@@ -1266,7 +1266,7 @@ public Variable evalJs(String js) {
         try {
             return new Variable(JS.eval(js));
         } catch (Exception e) {
-            KarateException ke = JsEngine.fromJsEvalException(js, e);
+            KarateException ke = JsEngine.fromJsEvalException(js, e, null);
             setFailedReason(ke);
             throw ke;
         }

karate-core/src/main/java/com/intuit/karate/core/ScenarioRuntime.java

@@ -30,6 +30,7 @@
 import com.intuit.karate.RuntimeHook;
 import com.intuit.karate.ScenarioActions;
 import com.intuit.karate.debug.DebugThread;
+import com.intuit.karate.graal.JsEngine;
 import com.intuit.karate.http.ResourceType;
 import com.intuit.karate.shell.StringLogAppender;
 
@@ -293,8 +294,8 @@ private void evalConfigJs(String js, String displayName) {
             Map<String, Object> map = engine.getOrEvalAsMap(fun);
             engine.setVariables(map);
         } catch (Exception e) {
-            String message = scenario.getDebugInfo() + "\n" + displayName + "\n" + e.getMessage();
-            error = new KarateException(message, e);
+            String message = ">> " + scenario.getDebugInfo() + "\n>> " + displayName + " failed\n>> " + e.getMessage();
+            error = JsEngine.fromJsEvalException(js, e, message);
             stopped = true;
             configFailed = true;
         }

karate-core/src/main/java/com/intuit/karate/graal/JsEngine.java

@@ -202,11 +202,14 @@ public Value evalWith(Set<String> names, Function<String, Object> getVariable, S
         return function.execute(JsValue.fromJava(arg));
     }
 
-    public static KarateException fromJsEvalException(String js, Exception e) {
+    public static KarateException fromJsEvalException(String js, Exception e, String message) {
         // do our best to make js error traces informative, else thrown exception seems to
         // get swallowed by the java reflection based method invoke flow
         StackTraceElement[] stack = e.getStackTrace();
         StringBuilder sb = new StringBuilder();
+        if (message != null) {
+            sb.append(message).append('\n');
+        }
         sb.append(">>>> js failed:\n");
         List<String> lines = StringUtils.toStringLines(js);
         int index = 0;
@@ -221,7 +224,7 @@ public static KarateException fromJsEvalException(String js, Exception e) {
             if (line.startsWith("<js>") || i > 5) {
                 break;
             }
-        }
+        }       
         return new KarateException(sb.toString());
     }    
 

karate-core/src/main/java/com/intuit/karate/template/KarateEngineContext.java

@@ -87,7 +87,7 @@ public JsValue evalGlobal(String src) {
         try {
             return jsEngine.eval(src);
         } catch (Exception e) {
-            throw JsEngine.fromJsEvalException(src, e);
+            throw JsEngine.fromJsEvalException(src, e, null);
         }
     }
 
@@ -96,7 +96,7 @@ public JsValue evalLocal(String src, boolean returnValue) {
             Value value = jsEngine.evalWith(getVariableNames(), this::getVariable, src, returnValue);
             return new JsValue(value);
         } catch (Exception e) {
-            throw JsEngine.fromJsEvalException(src, e);
+            throw JsEngine.fromJsEvalException(src, e, null);
         }
     }
 

karate-core/src/test/java/com/intuit/karate/core/parajava/ParallelJavaTest.java

@@ -0,0 +1,19 @@
+package com.intuit.karate.core.parajava;
+
+import com.intuit.karate.Results;
+import com.intuit.karate.Runner;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ParallelJavaTest {
+
+    // @Test
+    public void testParallel() {
+        Results results = Runner.path("classpath:com/intuit/karate/core/parajava/parallel-java.feature")
+                .configDir("classpath:com/intuit/karate/core/parajava")
+                .parallel(5);
+        assertEquals(0, results.getFailCount(), results.getErrorMessages());
+    }
+
+}

karate-core/src/test/java/com/intuit/karate/core/parajava/karate-config.js

@@ -0,0 +1,3 @@
+function karateConfig() {
+  return karate.callSingle('setup.feature');
+}

karate-core/src/test/java/com/intuit/karate/core/parajava/parallel-java.feature

@@ -0,0 +1,7 @@
+Feature:
+
+Scenario: test 1
+* match Hello.sayHello("foo") == "hello foo"
+
+Scenario: test 2
+* match Hello.sayHello("foo") == "hello foo"

karate-core/src/test/java/com/intuit/karate/core/parajava/setup.feature

@@ -0,0 +1,5 @@
+@ignore
+Feature:
+
+Scenario:
+* def Hello = Java.type('com.intuit.karate.core.parallel.Hello')